From: "Mi, Dapeng" <dapeng1.mi@linux.intel.com>
To: Thorsten Blum <thorsten.blum@linux.dev>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Jiri Olsa <jolsa@kernel.org>, Ian Rogers <irogers@google.com>,
Adrian Hunter <adrian.hunter@intel.com>,
James Clark <james.clark@linaro.org>,
Thomas Gleixner <tglx@kernel.org>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>
Cc: linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH RESEND v2] perf/x86/intel/uncore: Use sysfs_emit() in uncore_event_show()
Date: Wed, 12 Aug 2026 13:07:43 +0800 [thread overview]
Message-ID: <6c6e55c5-8275-4cb5-9f86-8770cc7ad19b@linux.intel.com> (raw)
In-Reply-To: <20260726094120.331668-3-thorsten.blum@linux.dev>
Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
On 7/26/2026 5:41 PM, Thorsten Blum wrote:
> Replace sprintf() with sysfs_emit() in uncore_event_show(). sysfs_emit()
> is preferred for formatting sysfs output because it provides safer
> bounds checking.
>
> Add a terminating newline as suggested by checkpatch.
>
> Acked-by: Namhyung Kim <namhyung@kernel.org>
> Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
> ---
> Changes in v2:
> - Add a terminating newline as suggested by checkpatch
> - Link to v1: https://lore.kernel.org/r/20260206194254.36105-2-thorsten.blum@linux.dev/
> ---
> arch/x86/events/intel/uncore.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/arch/x86/events/intel/uncore.c b/arch/x86/events/intel/uncore.c
> index 7857959c6e82..1ef4b4a5f545 100644
> --- a/arch/x86/events/intel/uncore.c
> +++ b/arch/x86/events/intel/uncore.c
> @@ -1,5 +1,6 @@
> // SPDX-License-Identifier: GPL-2.0-only
> #include <linux/module.h>
> +#include <linux/sysfs.h>
>
> #include <asm/cpu_device_id.h>
> #include <asm/intel-family.h>
> @@ -153,7 +154,7 @@ ssize_t uncore_event_show(struct device *dev,
> {
> struct uncore_event_desc *event =
> container_of(attr, struct uncore_event_desc, attr);
> - return sprintf(buf, "%s", event->config);
> + return sysfs_emit(buf, "%s\n", event->config);
> }
>
> struct intel_uncore_box *uncore_pmu_to_box(struct intel_uncore_pmu *pmu, int cpu)
>
next prev parent reply other threads:[~2026-08-12 5:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-26 9:41 Thorsten Blum
2026-08-12 5:07 ` Mi, Dapeng [this message]
-- strict thread matches above, loose matches on Subject: below --
2026-05-25 9:24 Thorsten Blum
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